Inadequate Cooling Problem
One of our bedrooms is not cooling well during summer. Even with the other registers in other rooms & hallway for this zone closed this room still does not cool well and other rooms still get extremely cold. Builder & HVAC contractor modified the room supply register that was doing a 180° turn under a window seat so that it was a 90° straight up from the floor but that only helped marginally. Now they want to extend a new duct from the main duct in the hallway in to this room.
I have two concerns:
– The air from the new vent (green below), even cool/cold air, will largely short circuit from the new vent directly to the return without providing much cooling to the room.
– With more air to the return from this new vent the other two vents (room & bathroom in red below) will not provide as much airflow when the bedroom door is closed at night which is when cooling is most needed.
The existing vents: Red supply vent in lower wall of bathroom, red supply vent in floor of bedroom and blue return vent in upper wall of bedroom.
New vent: Green supply vent in floor.
The house was completed in Jun 2020. This is one of six HVAC zones and serves 2 UL bedrooms, 1 UL office and UL hallway.
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